PostUp includes an AI Subject Line Assistant that can generate subject line ideas based on the HTML content of your email.

Instead of brainstorming subject lines manually, the AI analyzes your message content and returns several suggested subject lines you can use or modify. This can help speed up the creative process and provide new ideas for improving open rates.

In this article

• Generating Subject Line Suggestions

• Refining AI Suggestions

Generating Subject Line Suggestions

To generate subject line suggestions using AI:

1. Create your mailing and add your HTML content.

   The AI assistant uses your email content to generate suggestions. You do not need to enter a subject line first.

   Note: Other mailing steps (such as selecting a target audience) do not need to be completed before generating subject line suggestions.

2. Locate the Subject Line field.

3. Click the AI Wizard button next to the subject line text box.

4. PostUp will send your email HTML to the AI model and return several suggested subject lines.

5. Double-click a suggestion to insert it into the subject line field.

Refining AI Suggestions

You can refine the suggestions generated by the AI assistant.

1. Enter a comment or instruction in the text box at the bottom of the suggestions panel.

   Example prompts may include:

   • Add an emoji

   • Make the subject line shorter

   • Make it more urgent

2. Click the Refresh button.

The AI will generate a new set of suggestions using both your email content and your instruction.